5 investigations · ages 10-15 · free

Real investigations, not guessing games.

Each case is played across four linked rooms: every room gives you a piece of evidence, filed in your case file and needed for the next one. 5 age levels adjust the challenge, every playthrough is randomized, and everything builds on real science and history.

5investigations
5age levels
4linked rooms
100%free
Five levels

Age changes the difficulty, not the story

  1. 1Ages 10-11Detailed hints, guided conversions
  2. 2Ages 11-12Step-by-step guidance, simple calculations
  3. 3Ages 12-13Shorter hints, more traps
  4. 4Ages 13-14Cross-referenced deductions, advanced traps
  5. 5Ages 14-15Do the maths yourself, every trap
The case files

Five cases to untangle

Every room produces a piece of evidence. The last room is your report.

Investigation & Astronomy4 rooms

Pulsar Observatory: the 02:14 Signal

An “alien signal” is about to be announced at 9 am. Analyse the data, cross-check the clues and find out what was really picked up last night.

  1. 1The spectrogram (dispersion)
  2. 2The station logbook (time zones)
  3. 3The sky map (beams)
  4. 4The report to the director
Art forensics4 rooms

Leonardo's Fake Codex

A “lost page” by Leonardo da Vinci is about to sell for 12 million at 6 pm. Read the mirror writing, analyse the paper and pigments, and unmask the forger.

  1. 1The mirror writing
  2. 2The light table (watermark)
  3. 3The spectrometer (pigments)
  4. 4The expert report
Cyber investigation4 rooms

The Hacked School Account

The school's official account was hacked and Noah is being blamed. Analyse the phishing email, the login logs and the passwords to find the truth before 9 am.

  1. 1The phishing email
  2. 2The login logs
  3. 3The passwords
  4. 4The 9 am meeting
Archeology & Egypt4 rooms

The Jackal's Tomb

The TV is announcing “Cleopatra’s tomb”. Read the cartouches like Champollion, decipher Egyptian numerals, carbon-date the wrappings and find out who really lies here.

  1. 1The cartouches (Champollion's method)
  2. 2The seal (Egyptian numerals)
  3. 3Carbon-14 dating
  4. 4The live headline
Chemistry & History4 rooms

The Gold of Prague

Prague, 1597: an alchemist claims he can turn copper into gold before the emperor. Decode his grimoire, measure density like Archimedes and audit the Treasury.

  1. 1The grimoire (alchemical symbols)
  2. 2Archimedes' balance
  3. 3The Treasury ledger
  4. 4The report to the Emperor
How it works

An investigation is built step by step

A case file

Every piece of evidence goes into your case file. You'll need it in the next room: nothing is there just for decoration.

Real science

Radio-wave dispersion, watermarks, carbon-14, Archimedes' density, phishing: everything you handle really exists.

Traps

The final report mixes real and false leads. You have to cross-check the evidence, not click at random.

25 to 35 minutes

In your browser, no account. The time spent in each room is shown at the end.

The other worlds

An adventure for every age